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Sources of Light

Question 10 T...

Question

Question 10

Three torches A, B and C shown in Fig. are switched on one by one. The light from which of the torches will not form a shadow of the ball on the screen.

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Solution

Shadow is formed when the light from a source is blocked by an object. Since light always travels in a straight path, the light from torch c will not reach the screen and hence no shadow is formed.

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